Sioux chief 650 series piston-type water hammer arresters shall be required in piping systems. Water hammer arresters shall have sufficient volume of air to dissipate the calculated kinetic energy generated in the piping system. Arresters shall be effective when installed at any angle. Arresters shall be approved for installation with no access panel required. Water hammer arresters shall be ANSI/asset 1010 2004 certified. Arresters shall be sized and placed per manufacturer's instructions.

• Lifetime cycle tested at U.S. Testing laboratories to withstand 10,000 shock cycles. Factory tested to withstand 500,000 cycles without failure (654-c tested)
• Hydra-Rester male sweat fittings are compatible with press-fitting systems, such as viega process and all push-fitting systems
• Allows for installation in 2 × 4 wall cavity
• Certified by the American society of sanitary engineering to the ANSI/asset 1010-2004 standard